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1. 发明授权

US4395112A Latent electrostatic image developing device 失效
标题翻译：潜在静电图像显影装置
公开(公告)号：US4395112A
公开(公告)日：1983-07-26
申请号：US300525
申请日：1981-09-09
申请人： Nobuhiro Miyakawa , Kiyoshi Shibata , Toshio Watanabe , Yosuke Ohata
发明人： Nobuhiro Miyakawa , Kiyoshi Shibata , Toshio Watanabe , Yosuke Ohata
IPC分类号： G03G15/00 , G03G15/06 , G03G15/09
CPC分类号： G03G15/065
摘要： A latent electrostatic image developing device for developing a latent electrostatic image formed on an image-bearing member by applying a developer thereto. The developing device comprises a developer applicator means for holding the developer on its surface, carrying the developer to a developing zone and applying it to the latent electrostatic image in the developing zone and a bias voltage applying means for applying a bias voltage to the developer held on the surface of the developer applicator means. The developing device further includes a detector means for detecting the relative humidity of the environmental atmosphere and a control means for changing the magnitude of the applied bias voltage to a lower value when the detected relative humidity of the atmosphere exceeds a predetermined value.
摘要翻译：一种静电潜像显影装置，用于通过将显影剂施加到图像承载部件上来形成静电潜像。显影装置包括用于将显影剂保持在其表面上的显影剂施加装置，将显影剂携带到显影区域并将其施加到显影区域中的静电潜像;以及偏置电压施加装置，用于向显影剂施加偏置电压在显影剂施加装置的表面上。显影装置还包括用于检测环境气氛的相对湿度的检测器装置和当所检测的大气相对湿度超过预定值时将所施加的偏置电压的大小改变为较低值的控制装置。

2. 发明授权

US07955770B2 Photoconductor, photoconductor cartridge and image-forming apparatus 有权
标题翻译：感光体，感光鼓和图像形成装置
公开(公告)号：US07955770B2
公开(公告)日：2011-06-07
申请号：US11873353
申请日：2007-10-16
申请人： Nobuhiro Miyakawa , Shinji Yasukawa , Tomotake Hiraga , Ken Ikuma
发明人： Nobuhiro Miyakawa , Shinji Yasukawa , Tomotake Hiraga , Ken Ikuma
IPC分类号： G03G5/147
CPC分类号： G03G5/14791 , G03G5/14704 , G03G5/14726 , G03G5/1473 , G03G5/14734
摘要： The surface of a photoconductor is coated with a surface protection layer comprising a cured material of a fluorine-containing photo-curing composition containing fluorinated alkyl group-containing (meth)acrylate and a photopolymerization initiator, and the surface protection layer has a fluorine atom content of 8.5 to 20% by mass.
摘要翻译：光电导体的表面涂覆有包含含氟化烷基（甲基）丙烯酸酯和光聚合引发剂的含氟光固化组合物的固化物的表面保护层，表面保护层具有氟原子含量为8.5〜20质量％。

3. 发明授权

US06994942B2 Non-magnetic single-component toner, method of preparing the same, and image forming apparatus using the same 有权
标题翻译：非磁性单组分调色剂，其制备方法和使用其的成像装置
公开(公告)号：US06994942B2
公开(公告)日：2006-02-07
申请号：US10844490
申请日：2004-05-13
申请人： Nobuhiro Miyakawa , Takuya Kadota , Hidehiro Takano , Shinji Yasukawa , Masanao Kunugi
发明人： Nobuhiro Miyakawa , Takuya Kadota , Hidehiro Takano , Shinji Yasukawa , Masanao Kunugi
IPC分类号： G03G9/08
CPC分类号： G03G9/09708 , G03G9/0819 , G03G9/08711 , G03G9/08755 , G03G9/09716 , G03G9/09725
摘要： A non-magnetic single-component toner 8 of the present invention has toner mother particles 8a, and external additives 12 comprising: two hydrophobic silicas 13, 14 of which particle diameters are different from each other, i.e. a mean primary particle diameter of 7 nm to 12 nm and a mean primary particle diameter of 40 nm to 50 nm, and a hydrophobic rutile/anatase type titanium oxide 15 having a spindle shape of which major axial diameter is in a range from 0.02 nm to 0.10 nm and the ratio of the major axial diameter to the minor axial diameter is set to be 2 to 8, wherein the external additives 12 adhere to the toner mother particles 8a. By the hydrophobic silicas 13, 14 having work function smaller than the work function of the toner mother particles 8a, the negative charging property is imparted to the toner mother particles 8a and the fluidity is also insured. On the other hand, by mixing and using hydrophobic rutile/anatase type titanium oxide particles 15 having work function larger than or equal to the work function of the toner mother particles 8a together with the hydrophobic silicas 13, 14, the non-magnetic single-component toner 8 is prevented from excessively charged. Therefore, the amount of fog toner on non-image portions is reduced, the transfer efficiency is further improved, the charging property is further stabilized, and the production of reverse transfer toner is further inhibited.
摘要翻译：本发明的非磁性单组分调色剂8具有调色剂母体颗粒8a和外部添加剂12，其包含：两个疏水性二氧化硅13,14，其粒径彼此不同，即平均一次粒径为7 nm至12nm，平均一次粒径为40nm至50nm，主轴直径在0.02nm至0.10nm范围内的纺丝形状的疏水性金红石/锐钛矿型氧化钛15，相对于小轴向直径的主轴向直径设定为2至8，其中外部添加剂12粘附到调色剂母粒8a上。通过具有小于调色剂母粒子8a的功函数的功函数的疏水性二氧化硅13,14赋予调色剂母粒子8a的负带电性，并且流动性也得到保证。另一方面，通过将具有大于或等于调色剂母粒子8a的功函数的功函数与疏水性二氧化硅13,14一起混合并使用具有功函数的疏水性金红石型/锐钛矿型氧化钛粒子15， - 防止组分调色剂8过度充电。因此，非图像部分上的雾化调色剂的量减少，转印效率进一步提高，充电性能进一步稳定，并进一步抑制反转印调色剂的生产。

4. 发明申请

US20050208404A1 Toner, developing device and developing method using the same 失效
标题翻译：调色剂，显影装置及使用其的显影方法
公开(公告)号：US20050208404A1
公开(公告)日：2005-09-22
申请号：US11086772
申请日：2005-03-21
申请人： Nobuhiro Miyakawa , Shinji Yasukawa , Hiroyuki Murakami
发明人： Nobuhiro Miyakawa , Shinji Yasukawa , Hiroyuki Murakami
IPC分类号： G03G9/08 , G03G9/097 , G03G15/08
CPC分类号： G03G9/097 , G03G9/08 , G03G9/09708 , G03G9/09716 , G03G9/09725 , G03G9/09733 , G03G9/09783 , G03G9/09791 , G03G15/0894
摘要： The present invention provides a toner having: a toner mother particle; a first external additive including a first inorganic fine particle having a primary particle size distribution of 200 to 750 nm and a work function approximately equivalent to that of the toner mother particle; a second external additive including a second inorganic fine particle having an mean particle size smaller than that of the first inorganic fine particle and a work function smaller than that of the toner particle, a stirring member of a developing device and/or an inner wall of the developing device; and 0.01% to 0.3% by weight of a metal soap having a work function approximately equivalent to that of the toner mother particle.
摘要翻译：本发明提供一种调色剂，其具有：调色剂母粒; 第一外部添加剂，其包含初级粒度分布为200〜750nm的第一无机微粒和与调色剂母粒大致相同的功函数; 第二外部添加剂，其包含平均粒度小于第一无机细颗粒的第二无机细颗粒和比调色剂颗粒小的功函数，显影装置的搅拌构件和/或内壁的显影装置; 和0.01重量％至0.3重量％的功函数大约等于调色剂母粒的功函数。

5. 发明授权

US4614698A Two-component electrophotographic developer with magnetic carrier 失效
标题翻译：具有磁性载体的双组分电子照相显影剂
公开(公告)号：US4614698A
公开(公告)日：1986-09-30
申请号：US802315
申请日：1985-11-27
申请人： Nobuhiro Miyakawa , Koji Yano , Kazuo Yamamoto , Teruaki Higashiguchi , Yoshinobu Kawakami
发明人： Nobuhiro Miyakawa , Koji Yano , Kazuo Yamamoto , Teruaki Higashiguchi , Yoshinobu Kawakami
IPC分类号： G03G9/08 , G03G9/10 , G03G9/107 , G03G9/14
CPC分类号： G03G9/107 , G03G9/0819 , G03G9/0823
摘要： A two-component electrophotographic developer for use in developing a latent electrostatic image of a low potential. The developer is composed of a mixture of a magnetic carrier of spherical sintered ferrite particles having raised and depressed portions attributed to the primary particles on their surface, a median size of from 30 to 50 micrometers, an apparent density of less than 2.6 g/cc and an electric resistance, measured in the form of a magnetic brush, of from 6.times.10.sup.4 to 2.5.times.10.sup.6 ohms and chargeable toner particles having a volume inherent resistivity of at least 1.times.10.sup.13 ohms-cm and a specific inductive capacity of from 4 to 6. In a preferred embodiment, the chargeable toner particles have a median size of from 10 to 14 micrometers and are substantially free from particles having a particle diameter of not more than 5 micrometers. The developer can give an image of a high density, a high resolution and excellent gradation without brush marks.
摘要翻译：用于显影低电位潜静电图像的双组分电摄影显影剂。显影剂由具有由其表面上的初级颗粒引起的凸起和凹陷部分的球形烧结铁氧体颗粒的磁性载体的混合物组成，中值尺寸为30至50微米，表观密度小于2.6g / cc 以及以磁刷的形式测量的电阻为6×10 4至2.5×10 6欧姆，并且具有至少1×10 13欧姆 - 厘米的体积固有电阻率和4至6的电感率的可带电荷的调色剂颗粒。在可充电调色剂颗粒的中值粒径为10-14微米，基本上不含粒径不超过5微米的颗粒。开发者可以提供高密度，高分辨率和优异的无刷痕迹的图像。

6. 发明授权

US4551403A Photosensitive material for electrophotography 失效
标题翻译：电子照相用感光材料
公开(公告)号：US4551403A
公开(公告)日：1985-11-05
申请号：US653488
申请日：1984-09-24
申请人： Nobuhiro Miyakawa , Teruaki Higashiguti , Yumiko Sano , Masatomi Funato
发明人： Nobuhiro Miyakawa , Teruaki Higashiguti , Yumiko Sano , Masatomi Funato
IPC分类号： G03G5/00 , C08G63/193 , C08G63/199 , G03G5/04 , G03G5/05
CPC分类号： G03G5/04 , C08G63/193 , C08G63/199 , G03G5/056 , Y10S430/109
摘要： A photosensitive material for electrophotography, which comprises an electroconductive substrate and a photosensitive layer formed on the substrate. The photosensitive layer comprising a charge transfer medium and a charge-generating pigment dispersed in the mediums. The photosensitive layer contains as the matrix resin a thermoplastic polyester consisting essentially of recurring units represented by the following general formula: ##STR1## wherein R.sup.1 stands for a phenylene group or an ethylene group, R.sup.2 stands for a group represented by the formula ##STR2## R.sup.3 stands for a direct bond or a divalent bridging atom or group, and the ring A may have a substituent not participating in the reaction.In another embodiment a photosensitive material for electrophotography includes an electroconductive substrate, a photoconductive organic pigment-containing, charge-generating layer formed on the substrate and a charge transfer layer formed on the charge-generating layer, wherein the charge transfer layer contains as the matrix resin the above-mentioned thermoplastic polyester. These thermoplastic polyesters provide improvements in adhesion to the substrate, surface hardness and abrasion resistance.
摘要翻译：一种用于电子照相的感光材料，其包括导电基底和形成在基底上的感光层。感光层包含电荷转移介质和分散在介质中的产生电荷的颜料。感光层含有作为基质树脂的热塑性聚酯，其基本上由以下通式表示的重复单元组成：其中R1代表亚苯基或亚乙基，R2代表由下式表示的基团： R3代表直接键或二价桥连原子或基团，环A可以具有不参与反应的取代基。在另一个实施方案中，用于电子照相术的感光材料包括导电基底，在基底上形成的光电导有机颜料的电荷产生层和形成在电荷产生层上的电荷转移层，其中电荷转移层包含作为基质树脂上述热塑性聚酯。这些热塑性聚酯提供对基材的粘附性，表面硬度和耐磨性的改进。

7. 发明授权

US4504562A One-component type magnetic developer comprises particles of cubic magnetite 失效
标题翻译：单组分型磁性显影剂包括立方磁铁矿颗粒
公开(公告)号：US4504562A
公开(公告)日：1985-03-12
申请号：US507901
申请日：1983-06-27
申请人： Nobuhiro Miyakawa , Masanori Fujii , Kouzi Maekawa
发明人： Nobuhiro Miyakawa , Masanori Fujii , Kouzi Maekawa
IPC分类号： G03G9/083 , G03G9/14
CPC分类号： G03G9/0833 , Y10S430/104 , Y10T428/2998
摘要： Disclosed is a one-component type magnetic developer consisting essentially of a particulate shaped article of a composition comprising a binder resin medium and a powdery magnetic material dispersed in the binder resin medium, wherein said magnetic material comprising (A) a non-pulverizing agglomerate of cubic particles of magnetite having a particle size of 1 to 10 .mu.m as measured by an electron microscope and (B) magnetite particles having a particle size of 0.2 to 1 .mu.m at an (A)/(B) weight ratio of from 95/5 to 10/90, especially from 95/5 to 30/70.
摘要翻译：公开了一种单组分型磁性显影剂，其基本上由包含分散在粘合剂树脂介质中的粘合剂树脂介质和粉末状磁性材料的组合物的颗粒成形制品组成，其中所述磁性材料包含（A）非粉碎附聚物通过电子显微镜测定的粒径为1〜10μm的磁铁矿立方颗粒和（B）粒径为0.2-1μm的磁铁矿颗粒，（A）/（B）重量比为95 / 5至10/90，特别是95/5至30/70。

8. 发明授权

US4502067A Heat-sensitive black recording material 失效
标题翻译：热敏黑色录音材料
公开(公告)号：US4502067A
公开(公告)日：1985-02-26
申请号：US509068
申请日：1983-06-29
申请人： Masanori Matsuda , Haruo Koyama , Nobuhiro Miyakawa
发明人： Masanori Matsuda , Haruo Koyama , Nobuhiro Miyakawa
IPC分类号： B41M5/327 , C09B11/00 , C09B11/28 , B41M5/18
CPC分类号： B41M5/3275 , Y10S428/913 , Y10S428/914
摘要： Disclosed is a heat-sensitive recording material capable of forming an image of a hue close to a pure black at a low density, which comprises a dispersion of a leuco dye, a heat-fusible organic acidic substance solid at normal temperature and a sensitizing agent in a binder, wherein the leuco dye comprises a fluoran type leuco dye for forming a black color and a benzofluoran type leuco dye for forming a red dye in an amount of 0.01 to 1% by weight based on said black color-forming leuco dye.
摘要翻译：公开了一种热敏记录材料，其能够以低密度形成接近纯黑色的色调图像，其包括常温下的无色染料，热熔性有机酸性物质固体的分散体和敏化剂在粘合剂中，其中所述无色染料包含用于形成黑色的荧光型无色染料和用于形成基于所述黑色成色无色染料0.01至1重量％的量的红色染料的苯并荧烷型无色染料。

9. 发明授权

US4150387A Alternating current electrostatic recording process 失效
标题翻译：交流静电记录过程
公开(公告)号：US4150387A
公开(公告)日：1979-04-17
申请号：US845214
申请日：1977-10-25
申请人： Nobuhiro Miyakawa , Takashi Yamaguchi , Eiichi Inoue
发明人： Nobuhiro Miyakawa , Takashi Yamaguchi , Eiichi Inoue
IPC分类号： G03G15/05 , B41J2/41 , G03G5/10 , G03G15/32 , G06K15/14 , H04N1/29 , G03G15/00
CPC分类号： G03G5/105 , G03G15/325
摘要： In the electrostatic recording process comprising relatively scanning a recording electrode on an electrostatic recording material electrically connected between said recording electrode and a counter electrode, applying a high frequency alternating current or asymmetric alternating current recording signal formed by amplifying and modulating an image signal by a high frequency carrier wave between said two electrodes to form an electrostatic image on the electrostatic recording material, developing the so formed electrostatic image with a developer and, if desired, fixing the developed image, when an electrostatic recording material including an electroconductive substrate having a specific multi-layer distribution structure is used and if a dielectric layer is disposed on this electroconductive substrate in a specific arrangement selected according to the kind of the recording signal to be applied, such problems as blurring, tailing and fogging can be effectively eliminated and recorded images excellent in the density and sharpness can be obtained without substantial influences of the humidity in the recording atmosphere.
摘要翻译：在静电记录方法中，包括在电连接在所述记录电极和对电极之间的静电记录材料上相对地扫描记录电极，施加通过将图像信号放大和调制高电平而形成的高频交流电流或非对称交流记录信号所述两个电极之间的频率载波在静电记录材料上形成静电图像，用显影剂显影所形成的静电图像，并且如果需要，固定显影图像，当包括具有特定多个电极的导电基板的静电记录材料使用层间分布结构，并且如果以根据要应用的记录信号的种类选择的具体布置在介电层上设置电介质层，则可以有效地消除模糊，拖尾和起雾等问题，没有记录气氛中的湿度的实质影响，可以获得浓度和清晰度优异的图像。

10. 发明授权

US07809295B2 Color image forming apparatus and method for stabilizing liquid developer viscosity 有权
标题翻译：用于稳定液体显影剂粘度的彩色成像装置和方法
公开(公告)号：US07809295B2
公开(公告)日：2010-10-05
申请号：US11875734
申请日：2007-10-19
申请人： Shinji Yasukawa , Nobuhiro Miyakawa , Ken Ikuma
发明人： Shinji Yasukawa , Nobuhiro Miyakawa , Ken Ikuma
IPC分类号： G03G15/00
CPC分类号： G03G15/104 , G03G2215/0132
摘要： A color image forming apparatus includes, for each of liquid developers of plural colors, a photosensitive member, a developing roller, an agitating device that agitates a liquid developer having a viscosity characteristic dependent on a shearing force, and a developer supplying unit that supplies the liquid developer to the developing roller. In development, agitation start timing is varied depending on the color of the liquid developer.
摘要翻译：彩色图像形成装置对于各种颜色的液体显影剂包括：感光构件，显影辊，搅拌具有取决于剪切力的粘度特性的液体显影剂的搅拌装置;以及显影剂供给单元，液体显影剂到显影辊。在开发中，根据液体显影剂的颜色，搅拌开始时间是不同的。

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